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Old 06-18-2015, 09:57 AM
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grivera grivera is offline
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Join Date: Feb 2005
Location: Just south of Baltimore
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Quote:
Originally Posted by 72LuxuryLeMansLa. View Post
You want to define "big turd" for us? According to SD Performance "In a recent dyno test this cam installed in a 464ci engine with 9.5 to 1 compression, a set of our 250-260cfm CNC ported #11 cast iron heads, CNC ported cast iron Q-jet intake and a prepped Q-jet carb made 503hp and 575+ lb/ft of torque on 91 octane."

In my world 575lb/ft and 503HP does not equate to a "big turd" but is a respectable car. WE ARE in the street section after all.
Quote:
Originally Posted by Bentwheelbob View Post
Here's a stump puller combo...

It's in a stroked W72 for my 1978 Y88 Trans Am The engine is built to look completely stock with correct XX block, 6X heads, stock cast iron 10003395 intake, and correct 17056263 quadrajet. Len Williams provided the stroked short block XX, and Dave at SD Performance provided his full package 6X heads, the CNC'd and polished intake, and his Stump Puller cam. Cliff provided his top line rebuild kit spec'd for the engine and it proved dead nuts on. The lifters are PRW 1.52 rollers.

Yesterday morning it landed at Kauffman Racing to get broken in and dyno'd. Everything went great with no meaningful drama other than a small water pump leak and stuck thermostat. It came to life after the second bump and I am really pleased with the numbers and lack of issues that were encountered. They recorded peak HP of 474 at 5100 rpm on the 6th pull, and peak torque of 549 at 3600 rpm on the 5th pull.




I'm running the same cam so I'm glad to see your results. I am curious as to why it's down on power compared to the SD test...474 hp/549 tq vs 503 hp /575 tq

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Will Rivera

'69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress
‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here:
https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb